Evaporator for ORC cycle with recirculating heat carring water – computational model

• Autorzy: Kujawa T. , Nowak W.

Identyfikatory

DOI

10.30464/jmee.2018.2.4.301

• Języki publikacji: EN

Abstrakty

EN

The following paper presents an ORC installation including an evaporator with recirculation (heat carrying water exiting the evaporator is redirected to its inlet). It covers the calculations of inlet/outlet temperature of the evaporator taking into account a variant recirculation coefficient. Formulas for heat transfer between heat carrying water and working fluid inside evaporator are also included in this paper. The calculations are based on properly defined average specific heat. The analysis shows that the system performance depends on heat carrying water inlet temperature, on heat carrying water flow rate and the recirculation coefficient.

Słowa kluczowe

EN

evaporator; recirculation; average specific heat; ORC power plant; mathematical modeling

PL

parownik; recyrkulacja; ciepło właściwe; siłownia ORC; modelowanie matematyczne

• Wydawca: Wydawnictwo Uczelniane Politechniki Koszalińskiej
• Czasopismo: Journal of Mechanical and Energy Engineering
• Rocznik: 2018
• Tom: Vol. 2, No 4
• Strony: 301--310
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Kujawa T.

• West Pomeranian University of Technology, Szczecin, Faculty of Mechanical Engineering and Mechatronics, Department of Heat Engineering, al. Piastów 7, 70-310 Szczecin, Poland

autor

Nowak W.

• West Pomeranian University of Technology, Szczecin, Faculty of Mechanical Engineering and Mechatronics, Department of Heat Engineering, al. Piastów 7, 70-310 Szczecin, Poland

Bibliografia

• 1. Badr O., Probert S.D., O’Callaghan W.P. (1985). Selecting a working fluid for a Rankine-cycle engine. Applied Energy, Vol. 21, No. 1, pp.1-42.
• 2. Borsukiewicz-Gozdur A., Nowak W. (2007). Comparative analysis of natural and synthetic refrigerants in application to low temperature Clausius–Rankine cycle. Energy, Vol. 32, No. 4, pp. 344-352.
• 3. DiPippo R. (2008). Geothermal power plants. Principles, applications, case studies and environmental impact. Elsevier, Amsterdam.
• 4. Gupta H., Roy S. (2007). Geothermal energy: an alternative resource for the 21st century. Elsevier, Amsterdam.
• 5. Kujawa T., Nowak W. (2018). The range of application of ORC power plant in power stations fed with low and medium thermal sources. E3S Web Conf. Vol. 70, https://doi.org/10.1051/e3sconf/20187001009.
• 6. Lakew A.A., Bolland O. (2010). Working fluids for lowtemperature heat source. Applied Thermal Engineering, Vol. 30, No. 10, pp. 1262-1268.
• 7. Mikielewicz D., Mikielewicz J. (2010). A thermodynamic criterior for selection of working fluid for subcritical and supercritical domestic micro CHP. Applied Thermal Engineering, Vol. 30, No. 16, pp. 2357-2362.
• 8. Mikielewicz J., Mikielewicz D. (2009). Comparitive study selected fluids for use in supercritical Organic Rankine Cycles. Archives of Thermodynamics, Vol. 30, No. 2, pp. 2-15.
• 9. NISIT. (2010). RefProp 9.0, Standard Reference Database 23, Version 9.0, Reference Fluid Therodynamic and Transport Properties. National Institute of Standards and Technology, Gaithersburg, MD, USA.
• 10. Nowak W., Borsukiewicz-Gozdur A., Klonowicz P., Stachel A., Hanausek P., Klonowicz W. (2010). Preliminary results of testing the prototype system of mini-water plants with ORC fed with water at 100°C. Geological Review, Vol. 58, No. 7, pp. 622-625.
• 11. Nowak W., Borsukiewicz-Gozdur A., Stachel A. A., Klonowicz W., Hanausek P., Klonowicz P., Magiera R. (2010). Pierwsza demonstracyjna siłownia małej mocy w Polsce. Geological Review, Vol. 58, No. 7.
• 12. Nowak et al. (2012). Analiza i ocena wpływu bliskokrytycznych warunków wrzenia czynników obiegowych na poprawę efektywności pracy elektrowni geotermalnej. Raport końcowy projektu badawczego NN 513 39 34 36 finansowanego przez Narodowe Centrum Nauki.
• 13. Nowak W., Wiśniewski S. (2011). A concept to fuel the ORC power plant by heat sources of different temperatures, Thermodynamics in Science and Technology Proceedings of the 1st International Congress on Thermodynamics, Part 2, L. Bogusławski (Ed.) Poznań, Poland, pp. 877-886.
• 14. Saleh B., Koglbauer G., Wendland M., Fischer J. (2007). Working fluids for low-temperature Organic Rankine cycles. Energy, Vol. 32, No. 7, pp. 1210-1221.
• 15. Weisser P., Skotnicki P. (2010). Perspectives of using ORC systems for low temperature waste energy. Publisher: Instytut Śląski.
• 16. Wiśniewski S., Nowak W. (2012) ORC power plant effectiveness as affected by the cycle working fluid evaporation at narrow subcritical conditions. 3rd International Conference on Contemporary Problems of Thermal Engineering, CD, CPOTE 2012, Gliwice, Poland.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).